A prolonged shutdown of one of the world's most critical oil routes could do more than disrupt energy markets—it could tip the global economy into recession. That's the warning from Ken Griffin, speaking at the Semafor World Economy Summit in Washington, DC.

"Let's assume it's shut down for the next six to 12 months… the world's going to end up in a recession. There's no way to avoid that," he proclaimed.

Griffin Proclaims: An Oil Shock With Market Consequences

The chokepoint in question—the Strait of Hormuz—handles roughly 20% of global oil flows (according to the International Energy Agency), making it one of the most sensitive pressure points in the global economy.

That kind of disruption typically shows up first in energy markets. Funds tracking oil prices like the United States Oil Fund ( USO ) or broad energy exposure via the State Street Energy Select Sector SPDR ETF ( XLE ) tend to move quickly when supply shocks hit.

Griffin described the situation as a classic energy shock—the kind that feeds directly into inflation and growth risks.

From Inflation To Recession Risk

The challenge isn't just higher oil—it's what follows.

A sustained disruption could weaken demand, complicate central bank decisions, and reignite inflation. That combination often drives volatility across broader markets, including benchmarks like the State Street SPDR S&P 500 ETF Trust .

That leaves policymakers facing a difficult choice: tolerate inflation—or tighten policy again.

A ‘Treacherous Moment'

"This really is a very, very treacherous moment for the world economy," Griffin said.

Markets are already reflecting that tension. Bonds have turned volatile, with investors watching safe-haven flows into funds like the iShares 20+ Year Treasury Bond ETF even as inflation risks remain elevated.

A Forced Energy Shift

There may also be a longer-term shift underway.

Griffin said a prolonged disruption could accelerate moves toward nuclear and wind energy—a dynamic that could benefit clean energy funds such as the iShares Global Clean Energy ETF .

If the Strait stays open, the shock may pass.

If it doesn't, Griffin's message is blunt: there may be no way around a global recession.